Organisation for Economic Co-operation and Development, Programme for International Student Assessment, & ProQuest (Firm). (2009). PISA 2009 assessment framework: Key competencies in reading, mathematics and science. OECD.
Чикаго стиль цитування (17-те видання)Organisation for Economic Co-operation and Development, Programme for International Student Assessment, та ProQuest (Firm). PISA 2009 Assessment Framework: Key Competencies in Reading, Mathematics and Science. Paris: OECD, 2009.
Стиль цитування MLA (9-ме видання)Organisation for Economic Co-operation and Development, et al. PISA 2009 Assessment Framework: Key Competencies in Reading, Mathematics and Science. OECD, 2009.
Попередження: стилі цитування не завжди правильні на всі 100%.